On the C-SPAN Networks:
David Helvarg is a Founder and President for the Blue Frontier Campaign with four videos in the C-SPAN Video Library; the first appearance was a 2001 Speech as an Author. The year with the most videos was 2010 with two videos. The year with the highest average number of views per program was 2009 with an average of 300 views per program. Most common tag: Environment.